German veteran Tommy Haas provided a reminder of his claycourt skills to beat Stanislas Wawrinka on Thursday and reach the quarter-finals of the Rome Masters where Rafa Nadal and Andy Murray will resume their rivalry.

Holders Czech Republic took a huge step towards the Davis Cup semi-finals by opening a 2-0 lead over Japan on Friday, while Roger Federer`s Switzerland were locked at 1-1 with Kazakhstan in their quarter-final.

South African fourth seed Kevin Anderson, bidding for his second ATP Delray Beach Open crown in three seasons, reached the quarter-finals on Wednesday when Croatian Ivo Karlovic retired with a stomach virus.